OER Parts offers a wide selection of Stock Ignition Components for your 1973 GMC C35/C3500 Pickup. OER Parts offers 1973 GMC C35/C3500 Pickup Coils, 1973 GMC C35/C3500 Pickup Control Modules, 1973 GMC C35/C3500 Pickup Distributor Components, 1973 GMC C35/C3500 Pickup Distributors, 1973 GMC C35/C3500 Pickup Plugs & Wires, 1973 GMC C35/C3500 Pickup Stands & Hardware and 1973 GMC C35/C3500 Pickup Tune Up Parts.